Dip-pipe construction for the hydraulic mains of gas plants



- 1,628,334 May 10, 1927. w. SEYMOUR I DIP PIPE CONSTRUCTTION FOR THE HYDRAULIC MAINS 0F GAS PLANTS Filed Sept. 19, 1925 firm 70R. Mum/v SBMOMQ.

Arrm.

Patented May 10, 19 27 PATENT OFFICE.

UNITED STATES WILLIAM SEYMOUR, OF SAULT STE. MARIE, ONTARIO, CANADA.

DIP-IPIIPE CONSTRUCTION FOR THE HYDRAULIC MAINS OF GAS PLANTS.

Application filed September This invention relates to improvements in dip pipes for hydraulic mains of gas plants, and the objects of the invention are to provide a valve for cutting .oli' the gas from gas retorts or coke ovens.

Further objects are the provision of a dip valve so constructed that there is no possibility for the deposition of soot or pitch to interfere with the proper seating of the valve.

Still further objects are the provision of. a valve of this description that will be easy to operatev and with which the result obtained will be satisfactory.

With the foregoing and other objects in view, the invention consists essentially in the novel construction, combination and arrangement of parts described in the present specification and illustrated by the accom panyiug drawing that forn'is'part of the game.

The drawing represents an elevation with parts in vertical section of my improved dip valve or valve construction.

Referring now more particularly to the drawing, designates the standpipe through which the gas from a coke oven not shown) passes into the hydraulic collecting main 11. As is well known, each oven of a batte'ry, usually comprising from 25 to 70 ovens,

similarly connected to this collector main from which the gas is subsequently exhausted for treatment and recovery. While the coke is being removed and fresh coal charged into any oven, it is necessary to cut off the main outlet or standpipe from the collector main by some kind of a valve. My improved dip pipe and valve for this purpose consists of a dip pipe 12 extending partially into the collecting main and having a machined seat 13 at its lower end, and a valve 1st. of the same outside diameter as the pipe 12 and with face 15 machined to tit the seat 13 and provided with a valve stem 16 preferably of heavy pipe attached to and operating it. i

For operating the valve and stem I provide a pulley 17 suitably supported on astandard 18 over which travels a cable 19 attached at- 20 to the outer end of the valve stem and adapted at its other end to carry counterweights 21. The pipe 10 is connected through a bridge pipe 22 with a pipe 23 which performs the function of connecting the bridge pipe and the dip pipe in Which 19, 1925. Serial No. 57,374.

the valve stem lGoperates in a well known manner, this pipe 23 being bolted at its lower end at 24: to the dip pipe 12.

In operation, when gas is coming from the oven suflicient counterweights 21 are removed to allow the valve 1% to remain in the lowered position as indicated by the dotted lines. When the oven is to be pushedthe counterweights are replaced on the end of the cable 19, bringing valve 14' upwardly into the position shown in the drawings in full lines, thus preventing passage of the gas from the collecting main 11 to the standpipe 10.

My improved valve is very easy to operate, as full clearance can be allowed at cover 2', the loss of gas being prevented by a washer or collar 26. While here shown as applicable to one, the operating device may be designed to serve several valves A further feature is that in the open posiv tion away from the hot gases the valve let may be in'm'iersed in the flushing tar or liquor which is always flowing through these mains and consequently there is no possibility of the accumulation of pitch or soot on the valve proper.

As many changes could he made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claim constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

hat I claim as my invention is:

.In coi'nbination with a collecting main of a gas plant. a standpipe, a bridge pipe, an elongated dip pipe extending into the collecting main, a valve seatformed in the inner end of said dip pipe, a valve formed with an elongated stem adapted to engage with said seat to close the dip pipe, said valve when in open position being adapted to drop to the bottom of the collecting main, a connecting pipe for connecting the bridge pipe and the dip pipe, said connecting pipe being adapted to receive the elongated stem. of the valve, and means for raising and lowering the valve.

In witness whereof I have hereunto set my hand.

' WILLIAM SEYMOUR. 

